Ronnie O’Sullivan punches the air in celebration after his 35th career title.
Photograph: Alan Martin/Action Plus via Getty Images

1) Will Warren Gatland end his Six Nations sojourn with Wales as he began it, with a grand slam? Ireland stand in their way on Saturday, as they did when they visited Cardiff in 2005, when Wales memorably clinched a first title for 12 years. The whole game is here, if you’ve got the time. Wales beat Ireland at the 2011 World Cup too, but Ireland came out on top in 2018, en route to their own slam – and what a classic it was. Should Ireland prevail again this year it would pave the way for England to take the title by beating Scotland, something they achieved when they won the concluding matches in 1980 and at Twickenham in 1995.